#!/bin/sh
#			delete files safely.
#			version 13/03/2015 by Nick Manini
trashdir=$HOME/scratch	# or possibly $HOME/Desktop/Trash
if (test ! -d $trashdir) then
   mkdir $trashdir
fi
if (test $PWD = $trashdir) then
   echo 'As being in scratch area, the following files are being deleted permanently:'
   for i do
       \ls -dF "$i" ; \rm -r "$i"
   done
else
    for i do
	\ls -dF "$i" 1>&2
    done
   (for i do
	\mv "$i" $trashdir/
    done)&
    du -k $trashdir/ |
	awk '{MB=$1/1024}
	    END{if (MB > 30) {comm=sprintf("(%4.1f MB of garbage)",MB)}
		if (MB >100) {comm=comm ": what about some cleanup?"}
		printf "moving to '$trashdir' %s\n",comm
		}' 1>&2
fi